![]() ![]() ![]() Building codes also have detailed requirements for stair systems including structural load, width, riser height, and tread depth. Stair systems are an integral part of the building exit and entry and must be designed to achieve the proper fire rating based on building size, occupant load, and use group. ![]() Steel stair components are usually prime painted in the shop and receive a final paint coating in the field to prevent oxidation. The components include the landing frame or floor structure, stringers, treads, risers, brackets, railings, and support columns. Stair system components are typically standard sizes and shapes that are customized to fit specific project requirements. Other metals, such as bronze, can be used provided that the structural load-bearing capacity is determined by a structural engineer. Metal stairs can be fabricated from steel, stainless steel, cast iron, and aluminum. ![]()
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